On Tue, Dec 17, 2002, Chris Cheney <[EMAIL PROTECTED]> wrote: > I have a lamp on my desk that causes EMI errors on USB when I first turn > it on. In 2.4, and certain 2.5 kernels Linux can recover from this error. > I think it was fixed in 2.5.50-51 timeframe but was recently broken again. > Also uhci-hcd can still not be rmmod without it segfaulting. > > Here is an error log from today: > > Dec 17 14:49:41 singularity kernel: drivers/usb/core/hub.c: already running hub > 1 port 6 disabled by hub (EMI?), re-enabling... > Dec 17 14:49:41 singularity kernel: drivers/usb/core/usb.c: USB disconnect on device >14 > Dec 17 14:49:41 singularity kernel: drivers/usb/class/usblp.c: usblp0: removed > Dec 17 14:49:41 singularity kernel: drivers/usb/core/hub.c: debounce: hub 2 port 5: >delay 100ms stable 4 status 0x101 > Dec 17 14:49:41 singularity kernel: > Dec 17 14:49:41 singularity kernel: drivers/usb/core/hub.c: new USB device >00:11.2-1.6, assigned address 15 > Dec 17 14:49:42 singularity kernel: drivers/usb/host/uhci-hcd.c: bc00: host >controller process error. something bad happened > Dec 17 14:49:42 singularity kernel: drivers/usb/host/uhci-hcd.c: bc00: host >controller halted. very bad > Dec 17 14:49:47 singularity kernel: drivers/usb/core/message.c: >usb_control/bulk_msg: timeout
I haven't been able to reproduce this problem myself, but maybe I can put something together that causes some excess EMI. What HC do you have? (Intel? VIA?) Is this reproducible? JE ------------------------------------------------------- This sf.net email is sponsored by: With Great Power, Comes Great Responsibility Learn to use your power at OSDN's High Performance Computing Channel http://hpc.devchannel.org/ _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
